1. Soil Erosion Video Eric Angat Teacher

2. Copy and Answer the following Questions in your notebook. 1.Where is soil erosion happening? 2.Who practice soil conservation? 3.How do farmers practice soil conservation? 4.Draw, label, and describe the soil box with three compartments. 5.Explain why the third compartment has the highest degree of soil erosion.

3. Fibrous roots Fibrous roots have extensive root systems that hold and binds soil firmly preventing soil erosion.

4. https://www.youtube.com/watch?v=_UeVvU zgJAY

5. Copy and Answer the following Questions in your notebook. 1.Where is soil erosion happening? 2. Who practice soil conservation? Soil erosion is happening everywhere. Farmers practice soil conservation. We also need to practice soil conservation.

6. Copy and Answer the following Questions in your notebook. 3. How do farmers practice soil conservation? 4. Draw, label, and describe the soil box with three compartments. Planting grass filter strips, using plant residues, and no till or plowing etc. You just need to draw in the boxes of your worksheet what you watched.

7. Copy and Answer the following Questions in your notebook. 5. Explain why the third compartment has the highest degree of soil erosion. Because the soil is bare and has no protection from erosion.

9. Copy and Answer the following Questions in your notebook. 6. What is the disadvantage of plowing or soil tilling? 7. What are the alternatives for soil tilling or plowing? 8. What are the benefits of no till or minimum till? 9. Why are farm residues (stem and leaves of crops) left on farm lands? 10. Why is soil erosion considered as major problem in farming?

10. Soil Plowing an agricultural process used for cutting, lifting, and loosening the soil. Benefits – Roots need oxygen for cell respiration and the correct amount of water to nourish the plant. Plowing nurtures the soil by providing aeration and improving drainage.

11. Overgrazing Too many grazing animals degrades pasture, leading to exposure of the bare soil surface and ultimately erosion and even desertification of the area followed by wind/water erosion.desertification What grass plants need is sufficient recovery time between bites.

12. https://www.youtube.com/watch?v=dnNpxLYUwpc

13. Copy and Answer the following Questions in your notebook. 6. What is the disadvantage of plowing or soil tilling? 7. What are the alternatives for soil tilling or plowing? Soil plowing loosens the soil that makes it prone to water and wind erosion. Using crop residues, genetically modified plants, and minimum till.

14. Copy and Answer the following Questions in your notebook. 8. What are the benefits of no till or minimum till? 9. Why are farm residues (stem and leaves of crops) left on farm lands? It minimizes erosion and saves fuel. To prevent erosion and to fertilize the soil.

15. Copy and Answer the following Questions in your notebook. 10. Why is soil erosion considered as major problem in farming? Soil erosion washes away the topsoil that is considered the most nutritious part of the soil.

16. Copy and Answer the following Questions in your notebook. 11. What do we need to do to safeguard the future of our world? 12. Who are the key to the Green Economy? Why? 13. What is agriculture? Think! 14. Why do we need more food as years go by? 15. How can we help farmers produce more food? 16. How do plants help lower air pollution and prevent soil degradation? Think!

17. https://www.youtube.com/watch?v=twGev010Zwc

18. Copy and Answer the following Questions in your notebook. 11. What do we need to do to safeguard the future of our world? 12. Who are the key to the Green Economy? Why? Protect the soil so that we can feed the growing population of our planet. Farmers and of course all of us.

19. Copy and Answer the following Questions in your notebook. 13. What is agriculture? Think! 14. Why do we need more food as years go by? The use of land for growing plants and animals. Because human population is rapidly increasing.

20. Copy and Answer the following Questions in your notebook. 15. How can we help farmers produce more food? 16. How do plants help lower air pollution and prevent soil degradation? Think! Support scientific research, education, and sustainable agriculture. Plants uses carbon dioxide that lessens the greenhouse gases in the atmosphere. Also, plants prevent soil erosion.

21. 17. Watch and Read: What erosion prevention technique was used in building the Banaue Rice terraces in the Philippines? How does this technique prevent soil erosion? https://www.youtube.com/watch?v=Lb2sdsHUCLQ

23. Terracing and Contour plowing Prevents or slows down erosion by slowing down run- off. Run-off is water flowing on a slope. Fast run-off=great erosion

24. 18. Which is more likely to prevent mass-movement events? A.constructing buildings in stream drainage paths B.clear-cutting trees from the side of a mountain C.paving roads next to sloping hills D.contour plowing of crop areas

25. Asphalt and concrete road prevent the percolation of water to the soil. This leads to more run-off that leads to erosion and flooding. Accumulation of runoff

26. Cemented pathSpaced tilesGrass lawn Which of the following will permit the greatest percolation and least runoff?

27. 19. How does the replacement of large land areas with concrete and asphalt affect the land? A.It changes the bedrock of underlying layers of soil. B.It prevents the dynamics of the rock cycle. C.It increases the amount of groundwater in porous rock. D.It increases erosion of sediments by increasing runoff.

28. Soil Mulch

29. Soil mulch 1.to conserve moisture 2.to improve the fertility and health of the soil 3.to reduce weed growth 4.Prevent soil erosion Soil matting 1.to conserve moisture 2.to reduce weed growth 3.prevent soil erosion

30. Soil Much Prevent soil erosion Makes soil fertile. Prevent weeds from growing.

31. 20. How is Soil Mulching done?

32. 21. How is erosion prevented?

33. stabilized shoreline Adding rocks, sediments, and plants.

34. Establishing and Managing Riparian Forest Buffers

35. 22. From a scientific perspective, which of the following sequences of action is the best way to solve the problem of wetland erosion? A.add sediments, plantings, monitor plantings B.dredging, sand bags, plantings C.dredging, hard stabilization, plantings D.hard stabilization, sediment transport, pesticide treatment

36. 23. Cracks in rocks widen as water in them freezes and thaws. How does this affect the surface of the Earth? A. It reduces the rates of soil formation. B. It changes the chemical composition of the rocks. C. It exposes rocks to increased rates of erosion and weathering. D. It limits the exposure of rocks to acid precipitation.

37. 24. Which is a farming technique that could improve the soil and the environment? A. using fueled machines that will turn the soil continuously B. placing inorganic chemical fertilizers in the soil C. creating undisturbed layers of mulch in the soil D. irrigating the soil with salty water

38. 25. List 5 ways on how to lessen soil erosion. Think! no till or minimum till Leave farm residues (stem and leaves of crops) left on farm lands or use soil mulch. Terracing and Contour farming. Planting grass, shrubs, and trees. Stabilizing shorelines and protecting Riperian buffers.